@article {
author = {Hadei, Mostafa and Aalipour, Mohammadreza and Mengelizadeh, Nezamaddin and Fatemifar, Amirhossein and Hasanpour-Barijany, Samad},
title = {A survey on the performance of moving bed biofilm reactor and rapid sand filter in wastewater treatment},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {147-153},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40196},
abstract = {Moving bed biofilm reactor (MBBR) is a process in which attached growth is utilized for wastewater treatment. This process does not require sludge recycling or backwash. Activated sludge processes can be promoted to an MBBR by adding media to an aeration tank. Rapid sand filter is a physical method for the removal of total suspended solids (TSS) in advanced wastewater treatment. The purpose of this study was the evaluation of effluent reuse feasibility of MBBR and rapid sand filter in agricultural irrigation. Results showed TSS, biochemical oxygen demand (BOD5), and chemical oxygen demand (COD) concentrations in effluent were 10, 7.7, and 85.75 mg/l, respectively. Removal efficiency of TSS, BOD5, and COD was 98%, 98.8%, and 94.6%, respectively. Furthermore, the value of chemical parameters was less than the standard limitations. Average removal efficiency of total coliform, fecal coliform, and nematode was 100%. Total dissolved solids (TDS) and electrical conductivity (EC) in effluent were 960.5 mg/l and 1200.63 μs/cm, respectively. The Wilcox diagram showed that effluent was in the C3-S1 class, which means effluent quality was appropriate for irrigation. The results showed that effluent quality was completely compatible with the national standards in agricultural irrigation. },
keywords = {Wastewater,Rapid Sand Filter,Moving Bed Biofilm Reactor (MBBR)},
url = {http://jaehr.muk.ac.ir/article_40196.html},
eprint = {http://jaehr.muk.ac.ir/article__c797ce7c47b50e24b03e13080dc999a240196.pdf}
}
@article {
author = {Hossini, Hooshyar and Safari, Mahdi and Rezaee, Reza and Darvishi Cheshmeh Soltani, Reza and Giahi, Omid and Zandsalimi, Yahya},
title = {Application of experimental design approach for optimization of the photocatalytic degradation of humic substances in aqueous solution using immobilized ZnO nanoparticles},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {154-163},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40198},
abstract = {Degradation of humic substances in water is important due to its adverse effects on the environment and human health. The aim of this study was modeling and investigating the degradation of humic substances in water using immobilized ZnO as a catalyst. ZnO nanoparticles were synthesized through simple coprecipitation (CPT) method and immobilized on glass plates. The immobilized ZnO nanocatalyst was characterized through scanning electron microscopy (SEM) and X-ray diffraction (XRD). Response surface methodology (RSM) and central composite design (CCD) were used to create an experimental design for humic degradation and color removal efficiency. The most important parameters including initial concentration, pH, and contact time were optimized. The optimum conditions were initial concentration of 7.68 mg/l, pH of 4.42, and contact time of about 125.6 minutes. Under optimal conditions, maximum humic substances and color removal of about 100 and 82.37% were obtained, respectively. These results illustrate that an immobilized form of ZnO can be used as an efficient nanocatalyst for effective degradation of humic substances in water. },
keywords = {Humic substances,Catalyst,Immobilization,Zinc oxide,Nanoparticles,Modeling},
url = {http://jaehr.muk.ac.ir/article_40198.html},
eprint = {http://jaehr.muk.ac.ir/article__b4e6ddda27c9c6f5aec9ec2c464a777a40198.pdf}
}
@article {
author = {Banaee, Mahdi and Tahery, Somayeh and Vaziriyan, Maryam and Shahafve, Shima and Nemadoost-Haghi, Behzad},
title = {Reproductive health indicators of immature common carp exposed to municipal wastewater of Behbahan, Iran},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {164-171},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40199},
abstract = {Exogenous estrogens or pollutants with estrogen-like activity can induce vitellogenin (VTG) synthesis in male and juvenile fish, making this protein a useful indicator of chemicals that mimic estrogenic activity. The purpose of this study was to investigate the impact of municipal wastewater on blood biochemical parameters of common carp (Cyprinus carpio). Under experimental conditions, biomarkers such as sex steroid levels, alkali-labile phosphate levels, cholesterol and triglycerides, high-density lipoprotein (HDL), and low-density lipoprotein (LDL) were assessed in immature fish exposed to municipal wastewaters collected from a sewage canal in Behbahan, Khuzestan Province, Iran. No significant changes were found in testosterone levels on day 21; however, estradiol, alkali-labile phosphate, triglycerides, cholesterol, and LDL-cholesterol significantly increased in the fish exposed to municipal wastewater compared with the control group. A significant decrease in HDL-cholesterol levels was observed in the fish exposed to municipal wastewater at the end of the experiment. In conclusion, the results of the present study indicated that sewage effluent of Behbahan may contain endocrine disrupters and exposure to sublethal concentrations of municipal wastewater may cause dysfunction in reproductive health indicators of common carp.},
keywords = {Alkali-Labile Phosphate,Carp,endocrine disrupting chemicals,Municipal wastewater},
url = {http://jaehr.muk.ac.ir/article_40199.html},
eprint = {http://jaehr.muk.ac.ir/article__2120417296be479dda045777e3511b0640199.pdf}
}
@article {
author = {Amini, Shouresh and Rezaee, Reza and Jafari, Ali and Maleki, Afshin},
title = {Evaluation of corrosion and scaling potential of drinking water supply sources of Marivan villages, Iran},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {172-178},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40200},
abstract = {Corrosion and scaling in drinking water sources can lead to economic and health damages. These processes produce by-products in distribution systems, reduce chemical water quality, and are the cause of health issues among consumers. The aim of this study was to evaluate the corrosion and scaling potential of water supply sources of Marivan villages, Iran. In total, 106 water samples were collected through grab sampling from 64 wells and 42 springs in Marivan villages. The values of the Langelier saturation index (LSI), Ryznar stability index (RSI), Aggressive index (AI), and Puckorius index (PI) were calculated using parameters such as temperature, calcium hardness, total alkalinity (TA), total dissolved solids (TDS), and pH according to the last edition of the standard methods. Based on the RSI, 3% of the springs and 9% of the wells were in stable condition, 97% of the springs were corrosive and 90% of the wells had scale forming potential. The LSI was positive for 57% of the springs and 78% of the wells. The AI value of 40% of the springs and 64% of the wells was higher than 12 and the PI value was lower than 6 for all the springs and wells. The results of this study indicated that most of the springs were corrosive and a few of them had scale-forming potential. It was also found that the wells had scaling tendency. Thus, routine monitoring of the sources is necessary to control corrosion and scaling and maintain water quality. },
keywords = {Water Quality,Stability index,Corrosion Potential,ScalingWater Quality,corrosion,scaling,Natural Springs,Water Wells},
url = {http://jaehr.muk.ac.ir/article_40200.html},
eprint = {http://jaehr.muk.ac.ir/article__2c24fab608dbaf03dc35b8e39993357940200.pdf}
}
@article {
author = {Sobhanardakani, Soheil and Zandipak, Raziyeh},
title = {Adsorption of Co(II) ions from aqueous solutions using NiFe2O4 nanoparticles},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {179-187},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40201},
abstract = {In this study, NiFe2O4 nanoparticles (NiFe2O4 NPs) were prepared through co-precipitation method and subsequently used for the removal of Co(II) ions from aqueous solutions. The NiFe2O4 NPs were characterized by transmission electron microscopy (TEM), X-ray diffraction spectrometry (XRD), and Brunauer-Emmett-Teller (BET) surface area analysis. In batch tests, the effects of variables such as pH (2-10), adsorbent dose (0.006-0.08 g), contact time (0-90 minutes), and temperature (25-55 ◦C) on Co(II) ions removal were examined and optimized values were found to be 7, 0.02 g, 70 minutes, and 25 ◦C, respectively. In addition, the experimental data were fitted well to the Langmuir isotherm model and the maximum adsorption capacity was found to be 322.5 mg/g. Kinetic experiments were also conducted to determine the rate at which Co(II) ions are adsorbed onto the NiFe2O4 NPs. },
keywords = {Cobalt,Removal,Nanoparticles,Kinetics},
url = {http://jaehr.muk.ac.ir/article_40201.html},
eprint = {http://jaehr.muk.ac.ir/article__e55a2ade67b036dd679e1873406ada1240201.pdf}
}
@article {
author = {Nouri, Asad and Shahmoradi, Behzad and Dehestani-Athar, Saeed and Maleki, Afshin},
title = {Effect of temperature on pH, turbidity, and residual free chlorine in Sanandaj Water Distribution Network, Iran},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {188-195},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40202},
abstract = {One of the parameters responsible for decreased water quality in a distribution system is temperature changes. This study was conducted to examine the effect of temperature on pH, turbidity, and residual chlorine in Sanandaj, Iran, Water Distribution System. The required water samples were taken from 85 stations during April to October 2014. Sampling was carried out over 6 months and twice per month. The average amount of residual chlorine measured at these stations was 0.58 and 0.52 mg/l, and turbidity was 0.86 and 0.98 nephelometric turbidity unit (NTU) in winter and spring, respectively. The temperature did not have any effect on pH, the amount of pH in winter and spring were 7.56 and 7.57, respectively. The results showed significant differences in the concentration of residual chlorine and turbidity of Sanandaj Water Distribution Network between winter and spring (P ≤ 0.01). Thus, the concentration of residual chlorine and turbidity varies in warm and cold seasons. However, no significant difference was observed in pH (P ≥ 0.01). The research results indicated that temperature does not have any effect on the qualitative parameters measured in the study area. },
keywords = {Chlorine,Temperature,Water Quality,Iran},
url = {http://jaehr.muk.ac.ir/article_40202.html},
eprint = {http://jaehr.muk.ac.ir/article__aa9a927fa78119ae6fed3ce63090727640202.pdf}
}
@article {
author = {Rezaei, Shima and Rezaei, Hadi and Pirsaheb, Meghnhn and Ahmadi, Saeb and Hossini, Hooshyar},
title = {Simultaneous degradation and adsorption of cyanide using modified fly ASH and TiO2/UV},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {196-203},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40203},
abstract = {Due to the present water shortage and environmental problems associated with industrial effluent, investigation of novel treatment technologies is an essential approach. Being a highly toxic chemical of asphyxiating characteristics, cyanide is seen as a major environmental pollutant in a wide range of industrial effluents. The present study aimed to address the adsorption and photocatalytic degradation of cyanide using activated fly ash and TiO2/UV. To investigate the removal efficiency of cyanide, two sets of experiments were designed. First, cyanide was absorbed by activated fly ash and degraded via a photocatalytic process, individually. Second, simultaneous adsorption and degradation was examined. The removal efficiency of cyanide by modified fly ash (MFA), TiO2/UV, and their combination (MFA-TiO2/UV) was 76.1%, 81%, and 86.6%, respectively. Optimal conditions for the combination of activated fly ash AFA-TiO2/UV were contact time of 6 hours, temperature of 100 °C, and AFA: TiO2 ratio (w/w) of 1:1. Under these conditions, a maximum removal rate of 92.4% was obtained when 1.2 g of MFA/TiO2 was used with a pH value of 3 in the presence of UV light. Based on the results of cyanide removal, it can be concluded that the combination of adsorption and photocatalytic degradation with MFA-TiO2/UV can be utilized to improve the removal of cyanide from wastewater. },
keywords = {Adsorption,MFA-TiO2/UV,Cyanide,Photocatalytic degradation},
url = {http://jaehr.muk.ac.ir/article_40203.html},
eprint = {http://jaehr.muk.ac.ir/article__af11ed1a5a7fabb09c0ea6fd8ec53a4c40203.pdf}
}
@article {
author = {Saeedi, Sedigheh and Godini, Hatam and Almasian, Mohammad and Shams-Khorramabadi, Ghodratollah and Kamarehie, Bahram and Mostafaie, Parvin and Taheri, Fatemeh},
title = {Photocatalytic degradation of phenol in water solutions using zno nanoparticles immobilized on glass},
journal = {Journal of Advances in Environmental Health Research},
volume = {3},
number = {3},
pages = {204-213},
year = {2015},
publisher = {Kurdistan University of Medical Sciences},
issn = {2345-3990},
eissn = {},
doi = {10.22102/jaehr.2015.40204},
abstract = {Phenol and its derivatives are pollutant compounds that are present in the wastewater of many industries. The objective of this study was to investigate the photocatalytic degradation of phenol in water containing various concentrations of sodium chloride. A laboratory study was conducted to evaluate the performance of UV/ZnO process on the efficiency of phenol removal from saline water with ZnO nanoparticles fixed on glass using UVC radiation. The effects of pH, contact time, sodium chloride concentrations, and the initial concentration of phenol on the photocatalytic removal of phenol were studied. The photocatalytic degradation of phenol showed suitable efficiency under the absence of sodium chloride (100% phenol removal at a concentration of 5 mg/l and during 120 minutes). However, the removal efficiency decreased in the presence of a concentration of 30 g/l of sodium chloride (92.4%). Additionally, phenol photocatalytic degradation efficiency decreased as a result of an increase in the initial concentration of phenol and the efficiency increased as a result of a decrease in pH (pH = 3). The results obtained from this study indicated that ZnO nanoparticles or ultraviolet rays alone cannot remove phenol fully and have a much lower efficiency in comparison with the photocatalytic degradation of phenol. Thus, the photocatalytic degradation process (UV/ZnO) is an effective method of removing phenol from saline water solutions. },
keywords = {degradation,Phenol,Water Pollution,Nanoparticles},
url = {http://jaehr.muk.ac.ir/article_40204.html},
eprint = {http://jaehr.muk.ac.ir/article__8a9916d8a3d4b18b7f1722567fdf45c740204.pdf}
}